An arcade game or coin-op game is a coin-operated entertainment machine typically installed in public businesses such as restaurants, bars and amusement arcades. Most arcade games are presented as primarily games of skill and include arcade video games, pinball machines, electro-mechanical games, redemption games or merchandisers. Broadly, arcade games are nearly always considered games of skill, with only some elements of games of chance. Games that are solely games of chance, like slot machines and pachinko, often are categorized legally as gambling devices and, due to restrictions, may not be made available to minors or without appropriate oversight in many jurisdictions. An arcade video game takes player input from its controls, processes it through electrical or computerized components, and displays output to an electronic monitor or similar display. All arcade video games are coin-operated or accept other means of payment, housed in an arcade cabinet, and located in amusement arcades alongside other kinds of arcade games. Until the early 2000s, arcade video games were the largest and most technologically advanced segment of the video game industry. Early prototypical entries Galaxy Game and Computer Space in 1971 established the principle operations for arcade games, and Atari's Pong in 1972 is recognized as the first successful commercial arcade video game. Improvements in computer technology and gameplay design led to a golden age of arcade video games, the exact dates of which are debated but range from the late 1970s to mid-1980s. This golden age includes Space Invaders, Pac-Man, and Donkey Kong. The arcade industry had a resurgence from the early 1990s to mid-2000s, including Street Fighter II, Mortal Kombat, and Dance Dance Revolution, but ultimately declined in the Western world as competing home video game consoles such as the Sony PlayStation and Microsoft Xbox increased in their graphics and gameplay capability and decreased in cost. Nevertheless, Japan, China, and South Korea retain a strong arcade industry in the present day.
In the previous year's World of Fighting tournament, Ryuga squared off against the champion Kabuto in the final round. The two fought a hard, gruelling battle, which eventually ended with Ryuga defeating Kabuto and knocking his helmet off of his head. However, what Ryuga saw beneath the helm was a sight that he did not expect to witness. Beneath the helmet of Kabuto, was Ryuga's long-lost older brother Torao, who, like Ryuga, was a disciple of their family's own "Shinken-ryu" style of karate. However, being constantly left behind Ryuga's shadow caused him to run away at the age of 13, eventually finding himself serving for the Yakuza, using the teachings of Shinken-ryu for brutal violence rather than self-discipline. Torao's defeat at the hands of Ryuga continued to add fuel to the fire that is his immense hatred of him and his family. Ryuga, however, is filled with strong feelings of disgust towards him, and thus, instead of finishing him off, he decided to simply walk away and forfeit the match, unable to bear witness to the man that his brother had become. Alonst a year after the last tournament, another World of Fighting tournament has been announced. Hosted by the Yakuza, and marking the return of Kabuto as the champion. This time around, the stakes have been raised with a grand prize of $1,000,000,000, luring in more and more fighters from all over the world with its promises of prestige. However, to Ryuga, none of it matters to him, as the only thing that's in his mind right now is to fight his estranged brother and take him down once and for all, so as to make him realize the error of his ways. Thus, Ryuga sets off to the tournament, with a burning heart and a mind full of determination.
